Working on main menu and tutorials

src/ScriptEngine.cpp

@@ -370,6 +370,12 @@ namespace ZL {
                     game->requestClosePhone();
             });
 
+        api.set_function("return_to_main_menu",
+            [game]() {
+                if (game->requestReturnToMainMenu)
+                    game->requestReturnToMainMenu();
+            });
+
         api.set_function("set_chat_callbacks",
             [this_impl = impl.get()](sol::object cb0, sol::object cb1, sol::object cb2) {
                 if (cb0.is<sol::protected_function>()) this_impl->chatOpenCallbacks[0] = cb0.as<sol::protected_function>();